![Gravity: UART Infrared CO2...](https://www.botnroll.com/9853-home_default/gravity-uart-infrared-co2-sensor-0-50000ppm.jpg)
Gravity: UART Infrared CO2 Sensor...
Price
€98.90
![Gravity: Photoelectric...](https://www.botnroll.com/10824-home_default/gravity-photoelectric-water-liquid-level-sensor-for-arduino.jpg)
Gravity: Photoelectric Water / Liquid...
Price
€8.60
![Gravity: Non-contact Liquid...](https://www.botnroll.com/10828-home_default/gravity-non-contact-liquid-level-switch.jpg)
Gravity: Non-contact Liquid Level Switch
Price
€15.70
![Methane CNG Gas Sensor - MQ-4](https://www.botnroll.com/735-home_default/sensor-de-gas-metano-mq-4.jpg)
Methane CNG Gas Sensor - MQ-4
Price
€5.90
![Carbon Monoxide Sensor - MQ-7](https://www.botnroll.com/737-home_default/sensor-de-monoxido-de-carbono-mq7.jpg)
Carbon Monoxide Sensor - MQ-7
Price
€7.90
![Gravity: I2C BME680...](https://www.botnroll.com/9472-home_default/gravity-i2c-bme680-environmental-sensor.jpg)
Gravity: I2C BME680 Environmental Sensor
Price
€21.50
![Water Quality - Analog TDS...](https://www.botnroll.com/17323-home_default/gravity-analog-tds-sensor-meter-for-arduino.jpg)
Water Quality - Analog TDS...
Price
€14.90
![Gravity: Throw-in Type...](https://www.botnroll.com/12843-home_default/gravity-throw-in-type-liquid-level-transmitter-0-5m.jpg)
Gravity: Throw-in Type Liquid Level...
Regular price
€59.80
-€5.00
Price
€54.80
- On sale!
- -€5.00
![Sensor de caudal de água G3/4](https://www.botnroll.com/10726-home_default/sensor-de-caudal-de-agua-g3-4.jpg)
Sensor de caudal de água G3/4
Price
€19.20
![MQ-2 Gas Sensor Brick](https://www.botnroll.com/19826-home_default/mq-2-gas-sensor-brick.jpg)
MQ-2 Gas Sensor Brick
Price
€3.50
![G1/2 Water Flow Sensor YF-S201](https://www.botnroll.com/17066-home_default/sensor-de-caudal-de-agua-g3-4.jpg)
G1/2 Water Flow Sensor YF-S201
Regular price
€13.50
-€6.60
Price
€6.90
- On sale!
- -€6.60
![Air Quality Monitor (PM...](https://www.botnroll.com/11689-home_default/air-quality-monitor-pm-2-5-formaldehyde-temperature-humidity-sensor.jpg)
Air Quality Monitor (PM 2.5,...
Price
€49.90
![Gravity: Analog Dissolved...](https://www.botnroll.com/11702-home_default/gravity-analog-dissolved-oxygen-sensor-meter-kit-for-arduino.jpg)
Gravity: Analog Dissolved Oxygen...
Price
€179.95
![Adafruit SGP30 Air Quality...](https://www.botnroll.com/10416-home_default/adafruit-sgp30-air-quality-sensor-breakout-voc-and-eco2.jpg)
Adafruit SGP30 Air Quality Sensor...
Price
€22.95
![Level Sensor NO - Normally...](https://www.botnroll.com/11874-home_default/level-sensor-no-normally-close.jpg)
Level Sensor NO - Normally Close
Price
€4.95
![Level Sensor NO - Normally...](https://www.botnroll.com/11876-home_default/level-sensor-no-normally-open.jpg)
Level Sensor NO - Normally Open
Price
€6.95
![MQ-135 Gas Sensor - Funduino](https://www.botnroll.com/10437-home_default/mq-135-gas-sensor-funduino.jpg)
MQ-135 Gas Sensor - Funduino
Price
€6.50
![Water Flow Sensor YF-B1](https://www.botnroll.com/8826-home_default/water-flow-sensor-yf-b1.jpg)
Water Flow Sensor YF-B1
Price
€7.40
![Water Flow Sensor YF-B2](https://www.botnroll.com/8833-home_default/water-flow-sensor-yf-b2.jpg)
Water Flow Sensor YF-B2
Price
€7.40
![Water Flow Sensor YF-B3](https://www.botnroll.com/8835-home_default/water-flow-sensor-yf-b3.jpg)
Water Flow Sensor YF-B3
Price
€7.40
![Water Flow Sensor YF-B4](https://www.botnroll.com/8838-home_default/water-flow-sensor-yf-b4.jpg)
Water Flow Sensor YF-B4
Price
€9.90
![Water Flow Sensor YF-B5](https://www.botnroll.com/8842-home_default/water-flow-sensor-yf-b5.jpg)
Water Flow Sensor YF-B5
Price
€9.90
![Sensor de Álcool - MQ-3](https://www.botnroll.com/740-home_default/sensor-de-alcool-mq-3.jpg)
Alcohol Gas Sensor MQ-3
Price
€6.80
![Hydrogen Gas Sensor - MQ-8](https://www.botnroll.com/744-home_default/sensor-de-hidrogenio-mq-8.jpg)
Hydrogen Gas Sensor - MQ-8
Price
€8.50
![Sensor LPG (gás Butano e Propano)- MQ-6](https://www.botnroll.com/746-home_default/sensor-lpg-gas-butano-e-propano-mq-6.jpg)
LPG Gas Sensor - MQ-6
Price
€6.90
![PCB para sensor de gás](https://www.botnroll.com/752-home_default/pcb-para-sensor-de-gas.jpg)
Gas Sensor Breakout Board
Price
€0.90
![Liquid Level Sensor](https://www.botnroll.com/1424-home_default/liquid-level-sensor.jpg)
Liquid Level Sensor
Price
€57.60
![Analog CO/Combustible gas...](https://www.botnroll.com/17713-home_default/analog-co-combustible-gas-sensormq9.jpg)
Analog CO/Combustible gas sensor(MQ9)
Price
€12.75
![12V Solenoid Valve - 3/4"](https://www.botnroll.com/1582-home_default/12v-solenoid-valve-3-4.jpg)
12V Solenoid Valve - 3/4" Normally Close
Price
€12.40
![Analog Carbon Monoxide...](https://www.botnroll.com/17678-home_default/analog-carbon-monoxide-sensor-mq7.jpg)
Analog Carbon Monoxide Sensor (MQ7)
Price
€10.90
![Steam Sensor](https://www.botnroll.com/1690-home_default/steam-sensor.jpg)
Steam Sensor
Price
€2.30
![Detetor de Nível (Liquidos)](https://www.botnroll.com/2433-home_default/detetor-de-nivel-liquidos.jpg)
Detetor de Nível (Liquidos)
Price
€9.50
![Grove - Air quality sensor](https://www.botnroll.com/3524-home_default/grove-air-quality-sensor.jpg)
Grove - Air quality sensor V1.3
Price
€12.50
![CO2 Sensor (Arduino compatible)](https://www.botnroll.com/10648-home_default/co2-sensor-arduino-compatible.jpg)
CO2 Sensor MG-811 (Arduino compatible)
Regular price
€69.90
-€9.00
Price
€60.90
- On sale!
- -€9.00
![G1/8" Water Flow Sensor](https://www.botnroll.com/3731-home_default/g18-water-flow-sensor.jpg)
G1/8" Water Flow Sensor
Price
€11.70
![Gas Sensor MQ-5](https://www.botnroll.com/4032-home_default/gas-sensor-mq-5.jpg)
Gas Sensor MQ-5
Price
€3.80
![Grove - Multichannel Gas Sensor](https://www.botnroll.com/4566-home_default/sensor-de-8-tipos-de-gases-grove-i2c.jpg)
Grove - Multichannel Gas Sensor
Price
€48.90
- DISCONTINUED
![Grove - Gas Sensor(O2)](https://www.botnroll.com/4941-home_default/-grove-gas-sensoro2-.jpg)
Grove - Gas Sensor(O2)
Price
€79.90